"A Planet that was ejected from it's orbit around it's sun and wanders freely in interstellar space is called a Planetar. This is what happened to this rocky world a few billion years ago. It's now the silent witness of the death of the galaxy it originated from. This kind of cataclysmic event happens only rarely when the huge black hole found in a galaxy's center becomes too heavy to support it's own mass. "
Ow, that made my head hurt...
Black holes don't have an upper mass limit. Sorry, it's a great pic, but your patently unscientific comments just killed it.